7440003444 has 24 divisors (see below), whose sum is σ = 17393215840. Its totient is φ = 2475257184.

The previous prime is 7440003443. The next prime is 7440003479. The reversal of 7440003444 is 4443000447.

It is a super-2 number, since 2×7440003444² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7440003443) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 586459 + ... + 599010.

Almost surely, 2^7440003444 is an apocalyptic number.

It is an amenable number.

7440003444 is an abundant number, since it is smaller than the sum of its proper divisors (9953212396).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

7440003444 is a wasteful number, since it uses less digits than its factorization.

7440003444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1185999 (or 1185997 counting only the distinct ones).

The product of its (nonzero) digits is 21504, while the sum is 30.

The square root of 7440003444 is about 86255.4545753485. The cubic root of 7440003444 is about 1952.2003165635.

It can be divided in two parts, 7440003 and 444, that added together give a palindrome (7440447).

The spelling of 7440003444 in words is "seven billion, four hundred forty million, three thousand, four hundred forty-four".